7 papers
Heterogeneity, and the secret of the sea
P. Fraundorf
This paper explores tools for modeling and measuring the compositional heterogeneity of a rock, or other solid specimen. Intuitive ``variation per decade'' plots, simple expression…
Modernizing Newton, to work at any speed
P. Fraundorf
Modification of three ideas underlying Newton's original world view, with only minor changes in context, might offer two advantages to introductory physics students. First, the stu…
An experience model for anyspeed motion
P. Fraundorf
Simple airtrack simulations, like those now possible with web-based 3D environments, can provide explorers of any age with experiential data sufficient to formulate their own model…
Lattice parameters from direct-space images at two tilts
W. Qin, P. Fraundorf
Lattices in three dimensions are oft studied from the ``reciprocal space'' perspective of diffraction. Today, the full lattice of a crystal can often be inferred from direct-space…
The instrument response function in air-based scanning tunneling microscopy
P. Fraundorf, J. Tentschert
The distinction between point and line resolution in transmission electron microscopy (TEM) arises because an ability to image sub-0.2 nm fringes is a necessary, but not a sufficie…
Heat capacity in bits
P. Fraundorf
Information theory this century has clarified the 19th century work of Gibbs, and has shown that natural units for temperature kT, defined via 1/T=dS/dE, are energy per nat of info…